Skiving machine



Nov. 3, 1931. N, v DYER 1,829,792

SKIVING MACH/[INE Filed Nov. 15, 1929' llllllllLl-. Il

'Y Patented Nojv. 3,? 1931 fN11iii/"itatl y; bYEit oJRCCxToN, MSSQHISEQTSQzSSGiSIR; T6 `Uiwl SHGEl MALE v"CHILTERJL oo'RPoRarroN, 0F rATEBsoN, ,NEW JERSEY, AooRPonAmroNon NEW l presserj' should be p normally k'slirb'stantiallyv parallelfto the adjacentsurfa'ce ofthe roll 1'0 y ,fski'viim MACHINE "l'lhis` -inVentionrelates tol skiving machines to the' knifel and. Aa Apresser extending across therolfl'for holding the work'againstthe roll;` YIn' sucha machine the operative face of the and should be so supported that its twol ends lmay `yi'eld L independently. of eachY other" so thatk a substantially uniform vpressure,may be applied totheworkthroughout the portion engaged bythe 1presseIzIt is desirable that althoughfthefoot should yield freely towardr'ollg it shouldl neverthelessj to bei` turned orswung into pre'sseris carried by'a. spring havinglt'w'o rlegis.'

eonnected bya reverse curve, the legs being fastened to 'a stationary/"part, of thejrna'chine:

Inifthe illustrated oonstrubtiony a7 leaf ,spring '.liseniployedgthef legs ofthe spring being fas-f Vtened to. the usualedgegageblock ofthe ma*- ch'inewith'the reverselv'curyed portion pro- 'oYe'r the `feed roll; and the presserf'is p yielding moveln'entsof the presser, due tothe passing of the work betweent andt the roll,

are .compelled to, take placeiin 'a pathsubstan tially perpendicular` to the adjacent surface ofthe roll lwith no turning or rotating'of the foot which Vmightyendangerthe edgefof the knife'Vv e l s t This and' other features of the invention in- Y 'clu'ding 'certain detailsof oonstruotionvand Combinations of -partswill ybe described as Ven nbodiedfin anillustrated c'onstructionand @Si I 1 Figareis a, Vticula'rly the the appended claims. 1 Rf ferries 110W' @the eeempanyins'drawa ings," .f f 1 Figjl is affront 'elev plan; View inoreV par-.- relatiye positions of lthe` s knife adresser;

n ation' of afportion of" amachinegin Whichjthepresent lnyentlon v21s;

i3j isfadetail partlyn elevation and. partly in: section showing the action of1 the presser upon'faTpiece-Qof'work which tapers from the bodyportion toward theedg'e'; and L i"isfa viewsimilar to' Fig. 3 showing ther action of thepresserupon a piec'eof work Whic'htapers from the edge towardth'e body portion. 11 U Vc "l In the drawings the inv'entionis shown l,as

embodied iny the well-known Amazeen skiving machine. In rthis machine, thev work fed againstthe'edge of a" rotary rdisk knifey by a rotaryfeed roll I"("and a rotary feed' disk 9, the'roll having a cylindrical surface .which eooperates with the "feeddiskf and a frusto'- 'conical n surface' which `supports that portion ofthe Work whichfis 'beingskived The angle ofjth'e" scarf producedisdeterminedby the relative positions -of the' frusto-.conioalportion` ofthe feedlroll'and the knife; and'it is 'thus important that theV Work be pressed yfirmly* and; uniformly against'the periphery of y' his portion of the feed roll. i u.

f In the construction; shown, the inarginof the Work to' lbe acted upon' by the knifef'is pressed against the "frusto-conical portio'nof the feed'roll directly in vadvance of the edge' of the lknife byVr a presser 1l which isb-razed tofa leaf spring,vfherein shownfas being madein two ,partaV This'spring is ofy elongated U- shape and'coinprisestwo legs 13, 15 connected by a reverse curvefl "Forconvenie'nee in manufacturing',frthisspring is=rnade in two parts,as shownreonneoted: by 'screws 19.- The ends of thelegs of the spring are fastenedby a screw 21-toan edgegage. block 23 provided withxa gage finger vthe underY face ofthe gage finger and the adjacentsurface of the block being shapedto ft the peripheryvv of the' 90 v roll. Theextrelne ends ofthe legs 13, 15 of thev leaf spring, where they are fastened to the edge fgagebloc'k by the screw, 21 are some,- what separated by a spacer 25, through which the'screw passes.

s The presser/11 is of the usual shapeyhayingf vertical' rear face,"

a curved front face and saidlatter face being yer'y'c'lose to theiedge'of elear- 'that, the workf passes throughy the machine; it' should yn'otturnlthe presser 'at-all 'i aboutan axisparallel to the airis ofthe roll, since in silchk case the'presser Will be liable 'to v'bhe'knfe s e, e turning can take placeandto ensure that the.

v fof 4the.ll-slaapedl'eafspring; it being obvious v Ytheeeshorer,ewes thepresserv wll' "engagejfthe i Work. This Isa e. Vfofthe ed e f locatedg` f Springe @Spacer 10,l

l Y Itis desirable ltobe able'toQcontrol Contact With-'the @age of theme. with ,the

presser carried bythe reversely curved leaf Vspring having both of itsjlegs fastenedY to the stationary edgel bloelq tlle presser is "moved 'Y Yup and kdown by V the iWork-but, is pleve'nted from lturning orv swinging into contant with In order to ensure that Vno'sneh 1eefispringr'she11 seeming abonnee exis D ofits'fastening screw 2l,-an upstanding vflange 27 formed "upo'n'ther edge gage b1ocl23,en#V f 3 gagesfthe 'rear edges 4ofthe legs 13; 15 of the leafspring.4 i i lnorderto permitlthe presser Vlltobe adv jnst'edL -Vertic'allycco'rdancel with; theV Vflii'cln'es's o f-they Work=tobe--skiyed, a small thmb screwf29,- threaded throughthe upper vleg-113, passes -througha hole inthe lovserleg'v @drets V11,130,101faireupperSurfacwfhe edge Ygage blockcoiled spring- 3l encircles the stenioithescrewvbetween'the head thereof and thenpperf leg 13, providingfsniilcient the` screw from turning "the v scifeW Y the pressermay beraised and lowered, A Y the fore@a with Which the presser holdsthe Work against -therollgridto ,thisvend meansf'isb .reoved fthelegs means, takstheiofm 'Qi2v-Glane@V having Ve lowerplatejextending beneath a portion onr.posts.39, connecjting'.y vthenpper and low;

rfplates 35, ,33 ynporlwhich the'spacer is slid- V ablylnonnted, and athumbsereyvdl threaded j through4 the clamp into different@positions andV inanipnf A upper plate."V By moving the latingv the screw 4 1, the Veleetfive -.l engths of v the legsy may be varifedgto Varygthe vforce ywith which the presserfengages thef'work, v

f. Yengages thewor k1uniform1y. Inorder to inlprevelthe loper-:reon ef It has been statedabovey,

shn'uld beso ,rrnountedilthatthe ends 'may yield Y Vj in Fgsath'e niar'grr.(rrgthe .work 100 hesje* i4fthe 'margin of vthe dge. r1n bothl cases,l

independently Y:v of? eachother. f For example thin edge whilein Eli be f-sje @het-jene' presser 11 l larlyfngthe casefinfwhch, asnFig, LLydie age for the k er- 1161? is thickerfthafn; the-fester l; the senpe'fits applcatonto the naze-79a Vshown and described. I

ses@ bled; 23,211 upper-pletea ,by he? Spring 'fiom knie, efedfollfelef thattheiprefsser 11..

particular l eonstrllet'on,k which yhas Vbeen f Having thus described" I I claim as neW Vand desire to secureby ters'Patent of theUnited States'is v f Y 'y invention, what Let? l Y Af skiving maehne having-unf combina Y tien;` a knife,

a1feedroll;avspringhaving'twoI ilegs connected by a reversecnrvegrneans for fastening thejlegs to a stationiry part' oj-jthe mhne', and@ messicani 'd' bythespfe '2. A skiving machine having, finconbination,4 -akn'fe,` afeed roll, a springV havingltwo legs Yc onlvlected by a reyerse'curve, means forV Y 80 faStenef'l .rgdlyto' fastening the legsjte-asmtionary part 0f the machine, @dieriflesse? c the`v Aspring 1n position: te Cooperateewith the I'Oll: "ffii fastening'the legs to av stationary"` pant maehieeepresseGerfdibythesprme a Stationary me ,.bef.'engesmefrthe-Snfna one Vvside thereof; v

ylegs connected ,bya'reyersecurvm Ineens for `aetenhslthelessi@ Je' Stationei'yipart Of the' machine, and pressen carridfby the spring, f 'oneleeftheermeibene@fist" sectionthan tbefother.' 5; skivinglmachineihavin 21h-reverse; Curve keinemehihilinne tioeknfee @Gerona @Spring her-ieg .we

means for holdingtheflegs j legs connected reverse curve, m ans,lor

kofthe and..

er gross: f

of theispring `stationary vin a' localityjremote e from'fthe vreverse''je1,1ryel, :mda pressercarr 1edj Y @diegene-:rte thefrversely curved portlonfeiinpositionto v hold heygork" against; the i911. 4A Y vliVIlv fina,

eine newegg pring into'a ,reverse cu'rvefnleansf for holding theV legs of spring stationaryin; aloealjityfre.v t :andre Presser carriedjby {the} spring Y adjacent "toi the -ref niote romfthe reverseVV Gerne,

versely Cerve'fportenih posten :to 4hl th" rA '7. A-sl1y1ng machine having,V ink combinaf gated yU-shape haynglit's legsifastened' to a stationary part of the machine and the porf tion-0f' .the Sprigwhich' @needs thefless fedrrollfandza Presser projecting over the ate. Withfthe roll, E Y

l8. skiv'ngma elongated U -shape haying its .l' legs fastened to. a Stat-ienne. parte ofthe machine fend the 'm5 f pp'rtion ofthe spring Whhconneefetihe legs `projecting over the .feed rollad presser.

lio

tion, a knife, a feed roll', an elongated spring havingtwo legs connected by a reverse curve, means for fastening the'legs to a stationary part of the machine, and a presser fastened Y lto the spring adjacent to the reverse curve and vlocated in; against the roll. i Y

10, A skiving machine having in combination, a knife, a feed roll, an elongated leaf ysp'ringhaving twok legs connected by a reverse position to 'hold' the work t curve, means *for fastening the legs to a stationaryfpartrof the machine, and a'presser fastened to the spring adjacent to the reverse .curve and locatedin position to hold the work against the roll. e Y

11. A skiving machine having, in combi- ,natio-n, a knife, a feed roll, an `elongated spring havingtwo substantially parallel legs connected by a reverseV curve, means for fastening the legs toa stationary part of the machine,`and a presser fastened to the spring adjacentfto the reverse curve and located in position to hold the work against Vthe roll.

"1.2. A' skiving machine having, in combi.-

nation, a knife, afed roll, a leaf spring having two legs connected by a reverse curve,

j `means for4 fasteningthe legsltoa stationary part of the machine,fa presser carried by the VVleafspring and locatedin front of the knife engaging the rear edges of the legs of the means for fastening the legs to a stationary j andabovethe' roll, anda rigid member for 13; A skiving machine having, in combi- 'nation,fa"` knife, a-ifeed roll, a leaf spring having twov legs jconnectedby a reverse curve,

part ofthe machine, a presser carried bythe leaf springand located in front of the knifev fand above the roll, andv means engaging the spring to preventthe presser from turning about an axis .substantially parallel to that e of the feed roll. f c, Y

y14.. A skiving machinehaving, in combi- ,I nation, a knife,za yfeedvroll, a spring having two legs connected bya reverse curve, means f for fastening the legs to'a stationary part of the machine, a presser carried by thel spring in position to press the work against the roll, and means engaging the spring for varying the force exerted by the presser upon the e work. w

15'. A skiving machine having, in-combination,-a knife, a feed roll, a spring having two legs, means for'holding portions of the ythe legs to vary the force exerted by the f presser upon the work.

legs stationary, a presser carried by the spring in position to press the work against they roll,

and means for varying the effective length of "16. A skiving machine having,fin combi# nation, a'knife, a feed roll, a spring having two ylegs connected by afreverse curve, means .j 6 5rjinposition to press Vthe work against the roll, j

for fasteningV the legs-to a stationary part of themachine, a pressercarried b y the spring yspring and with it the presser.

and adjustable means for clamping the legs to each other and to the stationary ypart of the machine at different localities to vary the Y force exerted by the presser upon the work. o 17. A skiving machine having, in combination, a knife, a feed roll, a spring havingy two legs connected by a reverse curve, means for fastening the legs in a locality remote from the reverse curve to a stationary part of the machine, a presser carried by the spring adjacent to the reverse curve, and an adjusting member located between the presser andr the locality at which the legs are fastened for raising` and lowering the free portion of the 18. A skiving machine having,'in combination, a rotary knife, a feed ron, an edge vgage block, a leaf spring having two le sconnected by a reverse curve, means for astening the legs to the edge gage block with the reversely curved portion of the spring pro jecting beyond the block, a presser carried 

